Security Definition–noun | 1. | freedom from danger, risk, etc.; safety. |
| 2. | freedom from care, anxiety, or doubt; well-founded confidence. |
| 3. | something that secures or makes safe; protection; defense. |
| 4. | freedom from financial cares or from want: The insurance policy gave the family security. |
| 5. | precautions taken to guard against crime, attack, sabotage, espionage, etc.: The senator claimed security was lax and potential enemies know our plans. |
| 6. | a department or organization responsible for protection or safety: He calle
dc5
d security when he spotted the intruder. |
| 7. | protection or precautions taken against escape; custody: The dangerous criminal was placed under maximum security. |
| 8. | an assurance; guarantee. |
| 9. | Law. | a. | something given or deposited as surety for the fulfillment of a promise or an obligation, the payment of a debt, etc. |
| b. | one who becomes surety for another. |
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| 10. | an evidence of debt or of property, as a bond or a certificate of stock. |
| 11. | Usually, securities. stocks and bonds. |
| 12. | Archaic. overconfidence; cockiness. |
–adjective | 13. | of, pertaining to, or serving as security: The company has instituted stricter security measures. |
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From Dictionary
Related topics from Britannicasecurity
in business economics, written evidence of ownership conferring the right to receive property not currently in possession of the holder. The most common types of securities are stocks and bonds, of ...
computer security
the protection of computer systems and information from harm, theft, and unauthorized use. Computer hardware is typically protected by the same means used to protect other valuable or sensitive ...
collective security
system by which states have attempted to prevent or stop wars. Under a collective security arrangement, an aggressor against any one state is considered an aggressor against all other states, which ...
social security
any of the measures established by legislation to maintain individual or family income or to provide income when some or all sources of income are disrupted or terminated or when exceptionally heavy ...
Security and Co-operation in Europe, Organization for
organization of representatives of virtually all the states of Europe, as well as the United States and Canada, committed to formalizing decisions on important questions affecting the security and ...
Federal Security Service
Russian internal security and counterintelligence service created in 1994 as one of the successor agencies of the Soviet-era KGB. It is responsible for counterintelligence, antiterrorism, and ...
Securities and Exchange Commission
U.S. regulatory commission established by Congress in 1934 after the Senate Committee on Banking and Currency investigated the New York Stock Exchange's operations. The commission's purpose was to ...
National Security Council
U.S. agency within the Executive Office of the President, established by the National Security Act in 1947 to advise the president on domestic, foreign, and military policies related to national ...
National Security Agency
U.S. intelligence agency within the Department of Defense that is responsible for cryptographic and communications intelligence and security. The NSA grew out of the communications intelligence ...
security and protection system
any of various means or devices designed to guard persons and property against a broad range of hazards, including crime, fire, accidents, espionage, sabotage, subversion, and attack. |
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